以某文件名查找 find -name xxx
某文件的要求 Certain documentation requirements
正式宣布某文件作废 to say officially that a document can no longer be used or no longer has any legal effect
删除某个文件 rm xxx
送交文件给某方 serve papers on a party
找寻某个文件的位置 locate
比某个文件新 newer
想知道某个文件的位置 FIND
将某个源文件物理删除 cvs rm filename
怎样判断某文件是否存在？
这意思是说你对某文件做出更改的时候需要改变文件的许可。
This means you need to change the file permissions before you can make changes to the file.
当你排除某文件名或文件类型，杀软会完全无视系统上的此类文件，这会带来安全隐患。
When you exclude a filename or file extension, you are telling your antivirus software to completely ignore those files anywhere on your system, which could cause a security problem.
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